スクリューコンベアの送りが遅いのはなぜですか?
スクリューコンベアの送りが遅いのはなぜですか? Here's a choice question for you (multiple choices allowed): Reasons for slow feeding of screw conveyor ( ) あ. Arching of powder tank material B. Insufficient material in the powder tank C. The butterfly valve of the powder tank is opened too small